Treuing to find the right problem

DRE827768

MEMBER
2002 MERCURY MOUNTAINEER
4.6L
V8
2WD
179,530 MILES

My ac is hot and there is green stuff leaking out in the bottom like in the middle when I looked down their it look like it was coming from a hose but not sure. When I was changing my spark plugs about 2 weeks ago I did notice oil leaking out of my #5 could it just be the intake or is it the a/c compressor

Thursday, June 25th, 2015 AT 5:46 PM

5 Replies

ED-WEEZY21

MECHANIC
248 POSTS

If you have oil leaking out of your evaporator drain hose, you have a bad evaporator core. The oil in your #5 may be a bad tube seal gasket which is usually the only way oil can get in there aside from the actual valve cover or head being broken but that would be pretty apparent.

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Thursday, June 25th, 2015 AT 5:58 PM

DRE827768

MEMBER
10 POSTS

What about the antifreeze leaking will that course it to leak?

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Thursday, June 25th, 2015 AT 6:44 PM

ED-WEEZY21

MECHANIC
248 POSTS

Not out of the evaporator drain. That drain is specifically for the evaporator due to the evaporator "sweating" and causes water to drip off of it and it needs to go somewhere. Same concept of a cold glass of water on a hot day and the outside of the cup starts to form water on the outside. Coolant would only drip from the heater core and if the heater core is dripping, its dripping directly onto the floor inside of your vehicle, not through the ac drain outside. I hope that clarifies it a little for you.

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Thursday, June 25th, 2015 AT 7:35 PM

DRE827768